Cooperative hydrogen evolution reaction combining Cu2+1O and Ru active sites

Jing Wang; Bingxin Guo; Junting Sun; Yingshuang Zhou; Chengfei Zhao; Zhongzhe Wei; Junjie Guo

doi:10.1016/j.apcatb.2022.122169

Cooperative hydrogen evolution reaction combining Cu₂₊₁O and Ru active sites

Jing Wang^*, Bingxin Guo, Junting Sun, Yingshuang Zhou, Chengfei Zhao, Zhongzhe Wei, Junjie Guo

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

The design and construction of electrocatalysts with multiple components to modulate the intrinsic catalytic activity is a compelling strategy to achieve Pt-like activity for hydrogen generation. Challenging on the inert Cu-based electrocatalysts for water reduction, herein, a novel and fruitful CuRu-based electrocatalysts (RuCuO_x/NC) is established by combining dual-templates assembling and pyrolysis protocol with a subsequent hot-alkali corrosion. Benefitting from the synergetic effect of Cu₂₊₁O (with copper excess defects) and Ru, the as-prepared RuCuO_x/NC affords brilliant activity and stability under alkaline condition. In 1 M KOH, the RuCuO_x/NC provides Pt-like activity with overpotential of ∼29 mV to reach 10 mA cm⁻². Theoretical calculations certified that H₂O dissociation was accelerated and hydrogen adsorption free energy was optimized by the cooperation of Cu₂₊₁O and Ru. This work proposes a promising methodology to construct multi-components electrocatalysts, which may lend perspective for the design of advanced electrocatalysts for renewable energy systems.

Original language	English
Article number	122169
Journal	Applied Catalysis B: Environmental
Volume	324
DOIs	https://doi.org/10.1016/j.apcatb.2022.122169
Publication status	Published - 5 May 2023
Externally published	Yes

Keywords

CuO
Electrocatalyst
Hydrogen evolution reaction
Multi-component
Synergistic effect

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.apcatb.2022.122169

Cite this

Wang, J., Guo, B., Sun, J., Zhou, Y., Zhao, C., Wei, Z., & Guo, J. (2023). Cooperative hydrogen evolution reaction combining Cu₂₊₁O and Ru active sites. Applied Catalysis B: Environmental, 324, Article 122169. https://doi.org/10.1016/j.apcatb.2022.122169

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abstract = "The design and construction of electrocatalysts with multiple components to modulate the intrinsic catalytic activity is a compelling strategy to achieve Pt-like activity for hydrogen generation. Challenging on the inert Cu-based electrocatalysts for water reduction, herein, a novel and fruitful CuRu-based electrocatalysts (RuCuOx/NC) is established by combining dual-templates assembling and pyrolysis protocol with a subsequent hot-alkali corrosion. Benefitting from the synergetic effect of Cu2+1O (with copper excess defects) and Ru, the as-prepared RuCuOx/NC affords brilliant activity and stability under alkaline condition. In 1 M KOH, the RuCuOx/NC provides Pt-like activity with overpotential of ∼29 mV to reach 10 mA cm−2. Theoretical calculations certified that H2O dissociation was accelerated and hydrogen adsorption free energy was optimized by the cooperation of Cu2+1O and Ru. This work proposes a promising methodology to construct multi-components electrocatalysts, which may lend perspective for the design of advanced electrocatalysts for renewable energy systems.",

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author = "Jing Wang and Bingxin Guo and Junting Sun and Yingshuang Zhou and Chengfei Zhao and Zhongzhe Wei and Junjie Guo",

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AU - Wei, Zhongzhe

AU - Guo, Junjie

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N2 - The design and construction of electrocatalysts with multiple components to modulate the intrinsic catalytic activity is a compelling strategy to achieve Pt-like activity for hydrogen generation. Challenging on the inert Cu-based electrocatalysts for water reduction, herein, a novel and fruitful CuRu-based electrocatalysts (RuCuOx/NC) is established by combining dual-templates assembling and pyrolysis protocol with a subsequent hot-alkali corrosion. Benefitting from the synergetic effect of Cu2+1O (with copper excess defects) and Ru, the as-prepared RuCuOx/NC affords brilliant activity and stability under alkaline condition. In 1 M KOH, the RuCuOx/NC provides Pt-like activity with overpotential of ∼29 mV to reach 10 mA cm−2. Theoretical calculations certified that H2O dissociation was accelerated and hydrogen adsorption free energy was optimized by the cooperation of Cu2+1O and Ru. This work proposes a promising methodology to construct multi-components electrocatalysts, which may lend perspective for the design of advanced electrocatalysts for renewable energy systems.

AB - The design and construction of electrocatalysts with multiple components to modulate the intrinsic catalytic activity is a compelling strategy to achieve Pt-like activity for hydrogen generation. Challenging on the inert Cu-based electrocatalysts for water reduction, herein, a novel and fruitful CuRu-based electrocatalysts (RuCuOx/NC) is established by combining dual-templates assembling and pyrolysis protocol with a subsequent hot-alkali corrosion. Benefitting from the synergetic effect of Cu2+1O (with copper excess defects) and Ru, the as-prepared RuCuOx/NC affords brilliant activity and stability under alkaline condition. In 1 M KOH, the RuCuOx/NC provides Pt-like activity with overpotential of ∼29 mV to reach 10 mA cm−2. Theoretical calculations certified that H2O dissociation was accelerated and hydrogen adsorption free energy was optimized by the cooperation of Cu2+1O and Ru. This work proposes a promising methodology to construct multi-components electrocatalysts, which may lend perspective for the design of advanced electrocatalysts for renewable energy systems.

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